Senior/Staff Software Engineer, Product

Senior/Staff Software EngineerSlash is, at its core, a technology company and is on a mission to build the best engineering team in the world. We're looking for a Senior/Staff Software Engineer to help build and evolve our core banking product that powers $10b in transaction volume a year. This role blends infrastructure-level thinking with deep product intuition. You'll build fault-tolerant, user-facing financial primitives that spans across all customers, and you'll do it fast, cleanly, and with ownership.What You'll DoOwn and ship entire product surfaces end-to-end, from database schema and API design to building the product customers interact with dailyBuild and scale our core financial infrastructure: payments, transfers, invoicing, bill pay, onboarding, and card management systems that move tens of billions of dollars a yearDesign data models, write migrations, and build the backend services that power complex multi-step financial operationsWork directly with product, design, and compliance to ship features that are correct, compliant, and actually good to use — in financial software, the details are the productShape engineering standards, contribute to architecture decisions, and talk to customers to figure out what to build nextWe're Looking for Someone WhoHas shipped and owned full product surfaces — not just isolated features, but entire systems from data model to deployIs a strong full-stack engineer: comfortable designing API endpoints, writing a database migration, and building the frontend for a project end to endHas strong product instincts — thinks holistically about UX, API ergonomics, and system correctness, and pushes back when something doesn't feel rightThrives working independently in a small team that ships fast — you're the kind of person who builds product without requiring a full specCares about craft: writes clean, well-tested code, thinks about edge cases, and takes pride in building software that is delightful to useBonus: Has an intuition for financial systems (payments, ledgers, compliance) or a genuine desire to go deep on themWhat's in It for You:Opportunity for high growthHigh autonomy + ownership cultureComprehensive health + benefits planWorking out of our downtown San Francisco office spaceUnlimited PTO Slash Financial